CVE-2021-21834: Buffer Overflow
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Advanced Content library v1.0.1. A specially crafted MPEG-4 input when decoding the atom for the “co64” FOURCC can cause an integer overflow due to unchecked arithmetic resulting in a heap-based buffer overflow that causes memory corruption. An attacker can convince a user to open a video to trigger this vulnerability.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2021-21834?
CVE-2021-21834 has been classified as a high severity vulnerability due to its potential impact on system integrity.
How do I fix CVE-2021-21834?
To remediate CVE-2021-21834, update the GPAC library to version 2.2.1+dfsg1-3 or any later version.
What vulnerable software is affected by CVE-2021-21834?
The CVE-2021-21834 vulnerability affects GPAC version 1.0.1 and certain Debian versions including Debian 10.0 and 11.0.
What type of vulnerability is CVE-2021-21834?
CVE-2021-21834 is an integer overflow vulnerability that can be exploited through specially crafted MPEG-4 files.
What can happen if CVE-2021-21834 is exploited?
Exploitation of CVE-2021-21834 can lead to application crashes or potentially allow an attacker to execute arbitrary code.